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You searched for: subject:"'ecology'"
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[audio]07.12.2007 lisovskiy na radio svobodniy golos - yuriy shevchuk
07.12.2007
Keywords: ecology
Downloads: 24
[texts]Particle size distribution and optimal capture of aqueous macrobial eDNA - Cameron R. Turner
1. Detecting aquatic macroorganisms with environmental DNA (eDNA) is a new survey method with broad applicability. However, the origin, state, and fate of aqueous macrobial eDNA - which collectively determine how well eDNA can serve as a proxy for directly observing organisms and how eDNA should be captured, purified, and assayed - are poorly understood. 2. The size of aquatic particles provides clues about their origin, state, and fate...
Keywords: Ecology
Downloads: 3
[texts]Assessing the Use of Antiviral Treatment to Control Influenza - Sarah C Kramer
Vaccines are the cornerstone of influenza control policy, but can suffer from several drawbacks. Seasonal influenza vaccines are prone to production problems and low efficacies, while pandemic vaccines are unlikely to be available in time to slow a rapidly spreading global outbreak. Antiviral therapy was found to be beneficial during the influenza A(H1N1)pdm09 pandemic even with limited use; however, antiviral use has decreased further since then...
Keywords: Ecology
Downloads: 4
[texts]Meteorological conditions influence short-term survival and dispersal in a reinforced long-lived bird population. - Loïc A Hardouin
1. A high immediate mortality rate of released animals is an important cause of translocation failure (release cost). Post-release dispersal (i.e. the movements from the release site to the first breeding site) has recently been identified as another source of local translocation failure. In spite of their potential effects on conservation program outcomes, little is known about the quantitative effects of these two sources of translocation failure and their interactions with environmental facto...
Keywords: Ecology
Downloads: 3
[texts]The dark side of theoretical ecology - Lev V. Kalmykov
Good science must be clearly transparent in its theories, models and experiments. Earlier David Tilman drew attention to the fact that ecologists investigate interspecific competition phenomenologically, rather than mechanistically. To create a mechanistic model of a complex dynamic system we need to logically describe interactions of its subsystems which lead to emergence of new properties on the macro-level...
Keywords: Ecology
Downloads: 2
[texts]Diversity of entomopathogens Fungi: Which groups conquered the insect body? - João P.M. Araújo
The entomopathogenic Fungi comprise a wide range of ecologically diverse species. This group of parasites can be found distributed among all fungal phyla and as well as among the ecologically similar but phylogenetically distinct Oomycetes or water molds, that belong to a different kingdom (Stramenopila). As a group, the entomopathogenic fungi and water molds parasitize a wide range of insect hosts from aquatic larvae in streams to adult insects of high canopy tropical forests...
Keywords: Ecology
Downloads: 4
[texts]Exploring the spatially explicit predictions of the Maximum Entropy Theory of Ecology - Daniel McGlinn
The Maximum Entropy Theory of Ecology (METE) is a unified theory of biodiversity that attempts to simultaneously predict patterns of species abundance, size, and spatial structure. The spatial predictions of this theory have repeatedly performed well at predicting diversity patterns across scales. However, the theoretical development and evaluation of METE has focused on predicting patterns that ignore inter-site spatial correlations...
Keywords: Ecology
Downloads: 5
[texts]A solution to the biodiversity paradox by logical deterministic cellular automata - Lev V. Kalmykov
The paradox of biological diversity is the key problem of theoretical ecology. The paradox consists in the contradiction between the competitive exclusion principle and the observed biodiversity. This principle was formulated incorrectly because of limitations of the traditional black-box models of interspecific competition. The principle is very important as the basis for understanding evolutionary processes...
Keywords: Ecology
Downloads: 1
[texts]Spatial variation in water loss predicts terrestrial salamander distribution and population dynamics - William Peterman
Many patterns observed in ecology, such as species richness, life history variation, habitat use, and distribution have physiological underpinnings For many ectothermic organisms temperature relations shape these patterns, but for terrestrial amphibians, water balance may supersede temperature as the most critical physiologically-limiting factor. Many amphibian species have little resistance to water loss, which restricts them to moist microhabitats and may significantly affect foraging, dispers...
Keywords: Ecology
Downloads: 4
[texts]Beyond species: why ecological interaction networks vary through space and time - Timothée Poisot
Community ecology is tasked with the considerable challenge of predicting the structure, and properties, of emerging ecosystems. It requires the ability to understand how and why species interact, as this will allow the development of mechanism-based predictive models, and as such to better characterize how ecological mechanisms act locally on the existence of inter-specific interactions. Here we argue that the current conceptualization of species interaction networks is ill-suited for this task...
Keywords: Ecology
Downloads: 6
[texts]Response to climate change is related to species traits in the Lagomorpha - Katie Leach
Climate change during the last five decades has impacted on natural systems significantly and the rate of current climate change is of great concern among conservation biologists. Here, we assess the projected change in the bioclimatic envelopes of all 87 species in the mammalian order Lagomorpha under future climate using expertly validated species distribution models. Results suggest that climate change will impact more than two-thirds of Lagomorphs, with leporids (rabbits, hares and jackrabbi...
Keywords: Ecology
Downloads: 2
[texts]mangal - making complex ecological network analysis simpler - Timothée E Poisot
The study of ecological networks is severely limited by (i) the difficulty to access data, (ii) the lack of a standardized way to link meta-data with interactions, and (iii) the disparity of formats in which ecological networks themselves are represented. To overcome these limitations, we conceived a data specification for ecological networks. We implemented a database respecting this standard, and released a R package ( \`rmangal\`) allowing users to programmatically access, curate, and deposit...
Keywords: Ecology
Downloads: 4
[texts]The Effectiveness of China’s National Forest Protection Program and National-level Nature Reserves, 2000 to 2010 - Guopeng Ren
There is profound interest in knowing the degree to which Chinas institutions are capable of protecting its natural forests and biodiversity in the face of economic and political change. Chinas two most important forest protection policies are its National Forest Protection Program (NFPP) and its National-level Nature Reserves (NNRs). The NFPP was implemented in 17 provinces starting in the year 2000 in response to deforestation-caused flooding...
Keywords: Ecology
Downloads: 1
[texts]Estimating seed bank accumulation and dynamics in three obligate-seeder Proteaceae species - Meaghan E. Jenkins
The seed bank dynamics of the three co-occurring obligate-seeder (i.e. fire-sensitive) Proteaceae species, Banksia ericifolia, Banksia marginata and Petrophile pulchella, were examined at sites of varying time since the most recent fire (i.e. plant age) in the Sydney region. Significant variation among species was found in the number of cones produced, the position of the cones within the canopy, the percentage of barren cones produced (Banksia species only), the number of follicles/bracts produ...
Keywords: Ecology
Downloads: 3
[texts]The determinants of alpine butterfly richness and composition vary according to the ecological traits of species - Vincent Sonnay
Predicting spatial patterns of species diversity and composition using suitable environmental predictors is an essential element in conservation planning. Although species have distinct relationships to environmental conditions, some similarities may exist among species that share functional characteristics or traits. We investigated the relationship between species richness, composition and abiotic and biotic environment in different groups of butterflies that share ecological characteristics...
Keywords: Ecology
Downloads: 4
[texts]Nutritional aspects of honey bee-collected pollen and constraints on colony development in the eastern Mediterranean - Dorit Avni
Pollen is the main protein and lipid source for honey bees (Apis mellifera), and nutritionally impoverished landscapes pose a threat to colony development. To determine colony nutritional demands, we analyzed a yearly cycle of bee-collected pollen from colonies in the field and compared it to colony worker production and honey bee body composition, for the first time in social insects. We monitored monthly bee production in ten colonies at each of seven sites throughout Israel, and trapped polle...
Keywords: Ecology
Downloads: 4
[texts]Sampling principles for biodiversity study - Xubin Pan
Sampling is a fundamental tool in ecology and critical for biodiversity measurement. However, basic principles of biodiversity sampling have been overlooked for many years. In this paper, I proposed and explored five principles of sampling for a specific area and biodiversity study. The first principle of sampling, species increasing with area, is that the number of species increases with the area...
Keywords: Ecology
Downloads: 3
[texts]Building realistic assemblages with a Joint Species Distribution Model - David J. Harris
1. Species distribution models (SDMs) can be used to predict how individual species\---|and whole assemblages of species\---|will respond to a changing environment. Until now, these models have either assumed (1) that species' occurrence probabilities are uncorrelated, or (2) that species respond linearly to preselected environmental variables. These two assumptions currently prevent ecologists from modeling assemblages with realistic co-occurrence and species richness properties...
Keywords: Ecology
Downloads: 8
[texts]huang tu di qu zao lin jing yan - song chao shu

Keywords: ecology
Downloads: 149
[texts]Sap flow through petioles and petioles reveals leaf-level responses to light and vapor pressure deficit in the tropical tree Tabebuia rosea (Bignoniaceae) - Adam Roddy
Continuous measurements of sap flow have been widely used to measure water flux through tree stems and branches. However, these measurements lack the resolution necessary for determining fine-scale, leaf-level responses to environmental variables. We used the heat ratio method to measure sap flow rates through leaf petioles and leaflet petiolules of saplings of the tropical tree Tabebuia rosea (Bignoniaceae) to determine how leaf and leaflet sap flow responds to variation in light and vapor pres...
Keywords: Ecology
Downloads: 2
[texts]kun chong tu pu (Volume 1) - wang yun wu zhou jian ren

Keywords: ecology
Downloads: 149
[texts]Social, spatial and temporal segregation in an ant society - Lauren E Quevillon
abstract forthcoming.
Keywords: Ecology
Downloads: 5
[texts]jiang su nong zuo wu pin zhong zhi di yi fen ce shui dao (Volume 1) - jiang xi sheng nong ye ting zhong zi chu

Keywords: ecology
Downloads: 359
[texts]A Component land classification for the United States : status report - Driscoll, Richard S., 1928-
Bibliography: p. 17-19
Keywords: Ecology
Downloads: 145
[texts]The web of life : a first book of ecology - Storer, John H. (John Humphries), b. 1888
"A Mentor book."
Keywords: Ecology
Downloads: 178
[texts]lin ye sheng chan jie ling biao - zhong hua ren min gong he guo lin ye bu zao lin si he zuo lin chu

Keywords: ecology
Downloads: 228
[texts]ji lin sheng zhong yao shou ce - ji lin sheng wei sheng ting

Keywords: ecology
Downloads: 239
[texts]Some plants don’t play games: An ideal free distribution explains the root production of plants that do not engage in a tragedy of the commons game. - Gordon McNickle
1. Game theoretic models that seek to predict the most competitive strategy plants use for competition in soil are clear; they generally predict that over-proliferation of roots is the only evolutionarily stable strategy. However, empirical studies are equally clear that not all plants employ this strategy of over-proliferation of roots. Here, our goal was to develop and test an alternative non-game theoretic model that can be used to develop alternative hypotheses for plants that do not appear ...
Keywords: Ecology
Downloads: 4
[texts]Complex behavioral manipulation drives mismatch between host and parasite diversity - Fabricio Baccaro
Parasites and hosts are intimately associated such that changes in the diversity of one partner are thought to lead to changes in the other. We investigated this linked diversity hypothesis in a specialized ant-Ophiocordyceps system in three forests across 750 km in Central Amazonia. All species belonging to the fungal genus Ophiocordyceps associated with ants have evolved some degree of behavioral control to increase their own transmission, but the leaf-biting behavior is the most complex form ...
Keywords: Ecology
Downloads: 5
[texts]Seasonality dynamics of avian influenza occurrences in Central and West Africa - Trevon Fuller
Understanding seasonal cycles of viruses originating in wildlife can provide insight into their likelihood of persistence in animal populations and inform policies to limit spillover to human populations. Avian influenza virus (AIV) is an important zoonotic agent causing seasonal occurrence of avian influenza (AI) in wild birds in temperate areas. Although the seasonality of AIV transmission in tropical birds is largely unknown, peaks of influenza activity in human populations in the tropics coi...
Keywords: Ecology
Downloads: 3
[texts]The impacts of historical barriers on floristic patterns of plant groups with different dispersal abilities in the Ryukyu Archipelago, Japan - Koh Nakamura
The effects of historical barriers in biogeographical patterns are expected to persist differently depending on dispersal abilities of organisms. We tested two hypotheses that plant groups with different dispersal abilities display different floristic patterns, and that historical barriers can explain floristic differentiation patterns in plants with low dispersal ability but not in plants with higher dispersal ability, in the seed plant flora of the Ryukyu Archipelago...
Keywords: Ecology
Downloads: 4
[texts]Misuse of the null hypothesis in data reporting and interpretation : report - King, D. E. C
"PIBS2201"
Keywords: Ecology
Downloads: 335
[texts]lin xue gai lun (Volume 3) - cai yi chun wu bao qun (yi)

Keywords: ecology
Downloads: 181
[texts]jiang xi zhong yao (Volume 2) - jiang xi sheng zhong yi yao yan jiu suo

Keywords: ecology
Downloads: 210
[texts]lv hua zu guo de gao chao (Volume 1) - zhong hua ren min gong he guo lin ye bu

Keywords: ecology
Downloads: 328
[texts]Black rhinoceros demography should be stage, not age, based. - Peter R Law
Biologically meaningful and standardized definitions of life stages are essential for demographic studies, especially for endangered and intensively managed species such as rhinoceros. Focusing on the black rhinoceros Diceros bicornis, we argue that standardized biological definitions of calf, subadult, and adult, rather than age classes, provide the appropriate basis for black rhinoceros demography...
Keywords: Ecology
Downloads: 6
[texts]jiang xi nong ye bing chong hai zhi hai chong bu fen - jiang xi sheng nong ye ting zhi bao zhi jian chu jiang xi nong xue yuan kun chong bing li jiao yan zu

Keywords: ecology
Downloads: 250
[texts]An appraisal of the classic forest succession paradigm with the shade tolerance index - Jean F Lienard
In this paper we revisit the classic theory of forest succession that relates shade tolerance and species replacement and assess its validity to understand patch-mosaic patterns of forested ecosystems of the USA. We introduce a macroscopic parameter called the "shade tolerance index" and compare it to the classic continuum index in southern Wisconsin forests. We exemplify shade tolerance driven succession in White Pine--Eastern Hemlock forests using computer simulations and analyzing approximate...
Keywords: Ecology
Downloads: 5
[texts]Linking indices for biodiversity monitoring to extinction risk theory - Michael A. McCarthy
Biodiversity indices often combine data from different species when used in monitoring programs. Heuristic properties can suggest preferred indices, but we lack objective ways to discriminate between indices with similar heuristics. Biodiversity indices can be evaluated by determining how well they reflect management objectives that a monitoring program aims to support. For example, the Convention on Biological Diversity requires reporting about extinction rates, so simple indices that reflect e...
Keywords: Ecology
Downloads: 4
[texts]Os cabotinos - Ruano, António. cn
Mode of access: Internet
Keywords: ecology
Downloads: 192
[texts]ji lin sheng zhi lin ye - nan man tie lu diao cha ke

Keywords: ecology
Downloads: 218
[texts]shan xi sheng shui tu bao chi jing yan jie shao 陕西省水土保持经验介绍 (Volume 2) - shan xi sheng shui li ting 陕西省水利厅

Keywords: ecology
Downloads: 149
[texts]Building a better frog trap: The benefits of mal-adaptive habitat choice for metapopulations with different life history strategies - Rosemary Hartman
By spatially distributing offspring among several habitat patches in varying environments, an organism can "hedge its bets" to protect against bad conditions in any single patch. This strategy can maintain populations even when some or even all locations are, on average, population sinks. However, species may not have evolved this bet-hedging mechanism, especially when sink environments are anthropogenic "traps" - locations where traditional habitat cues have been altered...
Keywords: Ecology
Downloads: 5
[texts]lin xue gai lun (Volume 1) - cai yi chun wu bao qun

Keywords: ecology
Downloads: 158
[texts]huang hai chao jian dai sheng tai xue yan jiu (Volume 1(2)) - gu li ya nuo wa

Keywords: ecology
Downloads: 178
[texts]Numerous new mitogenomic sequences and multiple new environmental DNA markers for invasive bighead and silver carp (Hypophthalmichthys nobilis and H. molitrix) populations in North America - Richard F. Lance
Invasive Asian bighead and silver carp (Hypophthalmichthys nobilis and H. molitrix) pose a substantial threat to North American waterways. Recently, environmental DNA (eDNA), the use of species-specific genetic assays to detect the DNA of a particular species in a water sample, has gained recognition as a tool for tracking the invasion front of these species toward the Great Lakes. The goal of this study was to develop new species-specific conventional PCR (cPCR) and quantitative (qPCR) markers ...
Keywords: Ecology
Downloads: 11
[texts]Climate change triggers morphological and life-history evolution in response to predators - Edmund Hart
Although climate change is expected to reorganize entire communities, this restructuring might reflect either direct ecological or evolutionary responses to abiotic conditions or indirect effects mediated through altered species interactions. We tested the hypothesis that changes in trophic interaction strength due to altered predator abundance have a cascading evolutionary response in a prey species (Daphnia pulex)...
Keywords: Ecology
Downloads: 5
[texts]ResistanceGA: An R package for the optimization of resistance surfaces using genetic algorithms - William E Peterman
1. Understanding how landscape features affect functional connectivity among populations is a cornerstone of landscape genetic analyses. However, parameterization of resistance surfaces that best describe connectivity is largely a subjective process that explores a limited parameter space. 2. ResistanceGA is a new R package that utilizes a genetic algorithm to optimize resistance surfaces based on pairwise genetic distances and either CIRCUITSCAPE resistance distances or cost distances calculate...
Keywords: Ecology
Downloads: 10
[texts]A glossary of ecological terms for coastal engineers - Hurme, Arthur K
Cover title
Keywords: Ecology
Downloads: 308
[texts]nei meng xi lin guo lei meng cao chang gai kuang ji qi zhu yao mu cao de jie shao 内蒙锡林郭勒盟草场概况及其主要牧草的介绍 - wang dong 王栋

Keywords: ecology
Downloads: 166
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